FixVault

Auto Dimming Mirror: Adjustments: Compass: Variance

Determine correct zone location. See Fig 1 . Turn ignition switch to RUN position. Press and hold COMP button for 3 seconds. Zone selection number will appear in display. Toggle COMP button until correct zone appears. Release COMP button. Compass heading will appear within 10 seconds.

Fig 1: Identifying Compass Variance Zones
G98F01733Courtesy of GENERAL MOTORS CORP.